 this week's item PI long-time coming we've been waiting to do this one it's from Digilent and I just also want to mention special thanks did you key to double Digi is a Digilent plus Digi key not related to the key and did you learn yeah what is this week's item PI lady okay so this week's item PI we actually a year ago we did the Digilent digital discovery kit and it also stocked the analog discovery kit which is a little like USB oscilloscope logic analyzer type thing and so this week there's a new product from Digilent that is kind of like if you like the analog discovery kit this is that can the next generation is the pro analog discovery kit it is the analog discovery pro ADP 3450 and I think 3250 is the other part number and this is kind of like very similar circuitry to the analog discovery pro but it's kind of more ruggedized it's in a nice case and it's got a couple of cool things going for it which we'll talk about so to start off with this is a two or four channel oscilloscope and logic analyzer here's just you know one side of it and I'll show the whole you know all different sides it's in a kind of like a pizza box case and this is the back of it and you can see some interesting stuff there's four USB ports there's ethernet there's the device USB there's power 19 volts there's two trigger inputs there's a power port and then actually you know just realize that photo doesn't have the front so let's let's go quickly to the overhead and I will show off the front of it because I think it's worth showing early so this is me taking it apart so there's a logic analyzer and waveform generator here you can sort of see there's two by 16 pins and then this is the four channels this is four analog inputs and what's really neat about the oscilloscope inputs is that we actually have BNC jack so you could put probes on it and then this is the wave gen out this is a dual DAC output 14 bit 125 mega samples per second okay so let's go back to this okay so next one so I can't see the text maybe you can because there's a lot of specs and I wanted to get them all in here but basically you've got two or four channels 55 megahertz bandwidth there's over sampling they can get about 400 mega samples per second if not over sampling for you know non-repetitive you have a hundred mega samples per second plus or minus 25 volts 50 volt protected input 128 mega sample record mode we got analog output digital inputs advanced triggerings just kind of all all this stuff it's a little bit of like a bento box you get a little bit of everything here in the analog discovery so even though it's called the analog discovery it does do digital stuff as well so this is a USB connected device chances are you know a lot of people they're gonna connect us to their computer doesn't have it LCD it doesn't have any knobs on it if you want to do the control part you download the waveform software you install it and then you can see you can run on Raspberry Pi Mac Linux Windows and then when you run it you can you know do the kind of USB oscilloscope stuff that you would think of you know capturing data data logging analysis you can of course run scripts on it as we've covered waveform has a scripting language that lets you you know automate the inputs and outputs it's kind of like put pieces together to create your data acquisition that's more advanced than most USB oscilloscopes again it's got all that extra stuff the inputs and the outputs but waveforms is kind of like they've been working on this for a few years this is very solid software and I liked how responsive it was that the graphics drawing was very fast which I can't show you here because it's still but if you're using it I think there's even a simulation mode it's pretty easy and there's a lot of widgets so the thing that is I think interesting to think about is yes this you know it is a pretty good oscilloscope but compared to like a bench top scope it's not going to be as good right even my old tech TDS scope from like 15 years ago had one gigasample per second so you know the question is like why pick up something like this right something that is not that powerful as a bench top scope doesn't have an LCD doesn't have a TFT doesn't have the knobs and buttons and I think you know as I was using this I kind of realized that there's two reasons to use an oscilloscope right there's the debugging where you're analyzing a circuit and you're trying to figure out like why is my I script see not working why is my crystal not the right frequency whatever you're trying to do analysis of a circuit why is my power supply you know jittering you know what's the frequency what does this waveform look like so it's the kind of analysis look and then what this is good for and you can absolutely use it for that but what this is really good for is if you're working in a lab and your national instruments is the is the wholly owned the wholly owned Digilent and they're famous for lab view which is you know you're if you're an engineer or like a Mechie or chemist or biologist or physicist you're using this for data capture and analysis in academia and in industry and so what actually think this the analog discovery pro and the analog discovery and digital discovery are really good for is you know I remember when I was at MIT and I had even like people who are EEs they're like I really just want to quickly get data in I have to do very fast data capture for my physics experiment and they were like fighting with all these data acquisition tools and they're like you know Arduino isn't fast enough and this isn't good enough and that doesn't have good enough precision you want something that's like an oscilloscope but something you can script and you can use within lab view so I think that this is kind of the sweet spot for this product yes it can be used as a general purpose tool but it's it's kind of big it's not pocketable like the analog discovery this is a bench top tool is to be good for bench top data analysis data capture test you know testing if you're doing testing an analysis of a product and you know seeing people who have a product they're putting to put it into market they want it very they won't do a lot of testing on it this would be able to do like current capture and waveform output and testing the digital side and the analog side all at one and it's scriptable again with lab view it's gonna have first-class support and if you're used to lab view this is a great partner hardware for it is another thing that I thought was really interesting so this is you know anytime you see something with four USB ports at ethernet you're like that's all a microcontroller that's running like embedded Linux right because your microcontroller is not going to be able to do USB host it's very hard and in fact it is running embedded Linux it's got an arm core inside of it and so what's interesting about this is that you can get into it and log into it as a Linux computer and they're like really into that like they're like please log in and then you can run software on it natively so you don't have to worry about the bandwidth issues of trying to stream like very fast data over USB ethernet yes USB ethernet can do very fast data but not as fast as like native on-device data capture and saving and so you know you can plug in a USB you know USB data stick and do like massive data capture where you're you're you just have less layers in between so you have a higher throughput and lower latency so I thought that was kind of deep is anyone run do money yet I'm sure they will okay okay so there's four options available there's the 3250 which is again the two-channel 3450 which is the four-channel and then you've got a version with and without USB probes so VNC scope probes and all the add-on cables if you got your collection of scope probes which I do you know you can go for the cheaper version if not get the version with the probes and you're gonna of course pay for more channels it's almost twice as much because that's where the cost is is this expensive let me see it's the ad 948 and non-visual converter that's that's what the cost is and also the extra memory and the processing of the FPGA so pick whichever option I think we highlighted you know this is one which has all the scope probes and the BNC you can see the inputs and outputs yeah it costs a little bit more but you're ready to rock and they've got them all in stock which is a great reason to have eye and PI I love it when things are in stock that's right it's part number that's a short URL and you wanted to play this video yeah it's a little it's a two minute long video but it kind of covers everything even talks a little bit of Linux mode okay let's show it take it away Digilence ADP 3450 the first in the analog discovery pro line takes the capabilities of the analog discovery to and adds pro level functionality and performance the ADP 3450 is an all-in-one measurement solution in a compact chassis it features a four channel 14-bit oscilloscope with over 50 megahertz of bandwidth that can sample it up to half a giga sample per second and has 128 mega sample memory depth with BNC inputs for each channel to connect a standard oscilloscope probes two more BNC connectors provide outputs for the two channel 14 bit 125 mega sample per second arbitrary waveform generator the ADP 3450 also offers 16 channels of digital IO running at 125 mega samples per second a two channel digital power supply that can be programmed between 1.2 and 3.3 volts and two BNC trigger ports the ADP 3450 has integrated USB and Ethernet connectivity for use while connected to a PC in standard mode but it also offers a Linux mode with the ability to run tests and store data directly on the device this eliminates the bandwidth and latency bottlenecks inherent to streaming data to a host PC in both modes developers can use Digilent's free waveform software suite to control all the functionality of the ADP 3450 in standard mode waveforms provides virtual interfaces for each instrument with the ADP 3450 capable of being configured as a digital logic or bus analyzer spectrum analyzer network analyzer and more in addition to its primary oscilloscope wavegen digital IO and power supply functions for Linux mode engineers can script entire test routines that run directly on the ADP 3450 without any host intervention the ADP 3450 provides great value as it comes with all instrument capabilities unlocked and the ability to use them together it also offers for USB ports that can be used to add storage or additional hardware such as a Wi-Fi adapter to learn more about the ADP 3450 analog discovery pro visit store.digilentinc